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Error TBR-8006 Occurs When Executing top-N Query

Document Type | Troubleshooting

Category | App Development

Applicable Product Version | 7FS02PS

Document Number | TDETS019

 

Issue

When performing a top n query, the error code TBR-8006: Missing FROM keyword. is displayed, and the query does not execute.
 

Reproduction Scenario

SQL> create table t149894 (a number);
SQL> insert into t149894 values(1);
SQL> insert into t149894 values(2);
SQL> insert into t149894 values(3);
SQL> commit;

SQL> select top 2 a from t149894;
TBR-8006: Missing FROM keyword.
at line 1, column 12 of null:
select top 2 a from t149894

 

 

Cause

The patch โ€˜FS02PS_149894lโ€™ which added the top n syntax to limit the number of rows output during Select was not applied to this binary, so the top n syntax is not supported, causing this error. 
 
 
 
 

Solutions

Apply the patch to resolve the issue. (Applied patch: 149894l )
Caution
Apply the patch through technical support provided by Tmax TIBERO.
 
To execute top-N queries, the binary must have patch 149894 applied.
Verify normal operation after applying the patch.
SQL> select top 2 a from t149894;

    A


    1
    2

2 rows selected.
 
Note
As a temporary workaround, you can modify the query as follows. 
SQL> select a from t149894 order by a offset 0 rows fetch next 2 rows only;

     A


     1
     2

2 rows selected.
[ OFFSET offset { ROW | ROWS } ] 
[ FETCH { FIRST | NEXT } [ { rowcount | percent PERCENT } ] 
{ ROW | ROWS } { ONLY | WITH TIES } ]
  • OFFSET N: Specifies the number of rows to skip.
  • FETCH: Specifies the number or percentage of rows to return.
  • ONLY: Returns only the specified number or percentage of rows.
  • WITH TIES: Includes ties for the last row returned.
 
 
 
 

 

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